Grafico che non funziona

[feagle]

Slave a tutti sono nuovo del forum e del php, volevo provare qualche funzione grafica e mi sono imbattuto in un grafico a cruscotto e ho trovato un programmatore che ha realizzato un'esempio creando una classe php e corredandola di un file di esempio ma il tutto non funziona.

Qualcuno saprebbe dirmi il perchè ?

Grazie anticipatamente

[feagle]

<?
/**
* gauge
*
* @package TPO Projects Version 2.0
* @author M.S.B. Bachus
* @copyright TPO Displays Europe N.V. 2009
* @version V1.0 Initial version 2009-01-22
* @access public
*/
class gauge
{
/**
* gauge::gauge()
*
* Constructor sets up the Gauge
*
*/
function gauge()
{
// Set parameters
$this->imagesize = 100;
$this->span = 270;
$this->min = 0;
$this->max = 100;
$this->maj_tspan = 10;
$this->min_tspan = 5;
$this->maxgreen = 25;
$this->maxyellow = 67;
$this->legend = "";
$this->pos = 0;
$this->majortick = true;
$this->output = 'gif';
}

/**
* gauge::setPos()
*
* Tells the program which position the needle should show in relation to the maximum value.
*
* @param float $pos
*/
function setPos($pos)
{
// Only draw up to +-0.5% of the gauge scale
if ($pos < $this->min+($this->max*0.005))
{
$pos = $this->min+($this->max*0.005);
}
if ($pos > $this->max-($this->max*0.005))
{
$pos = $this->max-($this->max*0.005);
}

$this->pos = $pos;
}

/**
* gauge::setLegend()
*
* This places a text under the needle.
*
* @param String $legend
*/
function setLegend($legend)
{
$this->legend = $legend;
}

/**
* gauge::setOutput()
*
* Tells what output is generated, you have the choise between:
* 1. Gif $output = 'gif'
* 2. Jpg $output = 'jpg'
* 3. Png $output = 'png'
*
* @param String $output
*/
function setOutput($output)
{
$this->output = strtolower($output);
}

/**
* gauge::setGreen()
*
* Set the maximum value for the Green part of the scale.
*
* @param Integer $green
*/
function setGreen($green)
{
$this->maxgreen = $green;
}

/**
* gauge::setYellow()
*
* Set the maximum value for the Yellow part of the scale.
*
* @param Integer $yellow
*/
function setYellow($yellow)
{
$this->maxyellow = $yellow;
}

/**
* gauge::setMin()
*
* Set the minimum value for the scale.
*
* @param Integer $min
*/
function setMin($min)
{
$this->min = $min;
}

/**
* gauge::setMax()
*
* Set the maxiimum value for the scale.
*
* @param Integer $max
*/
function setMax($max)
{
$this->max = $max;
}

/**
* gauge::setSpan()
*
* Set the angle over which the scale is rotated.
*
* @param Integer $span
*/
function setSpan($span)
{
$this->span = $span;
}

/**
* gauge::setImagesize()
*
* Set the image size for the output. As the Gauge is square only one size is required.
*
* @param Integer $size
*/
function setImagesize($size)
{
$this->imagesize = $size;
}

/**
* gauge:lot()
*
* Start the output and draw the gauge.
*
* @return Graphical output (gif, jpg or png)
*/
function plot()
{
if ( $this->max - $this->min > 50 )
{
$this->minortick = true;
}
else
{
$this->minortick = false;
}

if ($this->maxyellow <= $this->max)
{
$this->maxred = $this->max;
}
$this->center = $this->imagesize/2;
$this->offset = ( 360 - $this->span )/2;
$this->startarc = 90+$this->offset;
$this->endarc = 90-$this->offset;

// Prepare image
error_log("Size = ".$this->imagesize);
$this->img = imagecreate($this->imagesize, $this->imagesize);
$this->white = imagecolorallocate($this->img, 255, 255, 255);
$this->black = imagecolorallocate($this->img, 0, 0, 0);
$this->silver = imagecolorallocate($this->img, 0xD0, 0xD0, 0xD0);
$this->red = imagecolorallocate($this->img, 255, 0, 0);
$this->yellow = imagecolorallocate($this->img, 255, 165, 0);
$this->green = imagecolorallocate($this->img, 0, 120, 0);
$this->grey1 = imagecolorallocate($this->img, 0x40, 0x40, 0x40);
$this->grey2 = imagecolorallocate($this->img, 0x60, 0x60, 0x60);
$this->grey3 = imagecolorallocate($this->img, 0x80, 0x80, 0x80);
$this->grey4 = imagecolorallocate($this->img, 0xA0, 0xA0, 0xA0);
$this->grey5 = imagecolorallocate($this->img, 0xC0, 0xC0, 0xC0);

// Start Drawing Gauge
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.99,
$this->imagesize*0.99,
0,
360,
$this->grey1,
IMG_ARC_PIE );
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.985,
$this->imagesize*0.985,
0,
360,
$this->grey2,
IMG_ARC_PIE );
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.975,
$this->imagesize*0.975,
0,
360,
$this->grey3,
IMG_ARC_PIE );
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.96,
$this->imagesize*0.96,
0,
360,
$this->grey4,
IMG_ARC_PIE );
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.94,
$this->imagesize*0.94,
0,
360,
$this->grey5,
IMG_ARC_PIE );
imagefilledarc($this->img,
$this->center,
$this->center,
$this->imagesize*0.915,
$this->imagesize*0.915,
0,
360,
$this->white,
IMG_ARC_PIE );

// Draw Green Arc
if ($this->maxgreen > $this->min)
{
if ($this->maxgreen > $this->max)
{
$this->maxgreen = $this->max;
}
$this->startgreen = $this->startarc;
$this->endgreen = $this->startarc + floor( $this->span * ($this->maxgreen/$this->max));
imagefilledarc($this->img,
$this->center,
$this->center,
0.9*$this->imagesize,
0.9*$this->imagesize,
$this->startgreen,
$this->endgreen,
$this->green,
IMG_ARC_PIE );
}
else
{
// No green in this gauge.
$this->maxgreen = $this->min;
}

// Draw Yellow Arc
if ($this->maxyellow > $this->maxgreen)
{
if ($this->maxyellow > $this->max)
{
$this->maxyellow = $this->max;
}
$this->startyellow = $this->endgreen;
$this->endyellow = $this->startarc + floor( $this->span * ($this->maxyellow/$this->max));
imagefilledarc($this->img,
$this->center,
$this->center,
0.9*$this->imagesize,
0.9*$this->imagesize,
$this->startyellow,
$this->endyellow,
$this->yellow,
IMG_ARC_PIE );
}
else
{
// No yellow in this
$this->maxyellow = $this->maxgreen;
}

// Draw red Arc
if ($this->maxred > $this->maxyellow)
{
if ($this->maxred > $this->max)
{
$this->maxred = $this->max;
}
$this->startred = $this->endyellow;
$this->endred = $this->startarc + floor( $this->span * ($this->maxred/$this->max));
imagefilledarc($this->img,
$this->center,
$this->center,
0.9*$this->imagesize,
0.9*$this->imagesize,
$this->startred,
$this->endred,
$this->red,
IMG_ARC_PIE );
}
else
{
// No red in this
$this->maxred = $this->maxyellow;
}
imagefilledarc($this->img,
$this->center,
$this->center,
0.6*$this->imagesize,
0.6*$this->imagesize,
0,
360,
$this->white,
IMG_ARC_PIE );

// Set scale
imagearc($this->img,
$this->center,
$this->center,
0.75*$this->imagesize,
0.75*$this->imagesize,
$this->startarc,
$this->endarc,
$this->black);
// set minor tickmarks
if ( $this->minortick )
{
for ($i=$this->min; $i<=$this->max; $i+=$this->min_tspan)
{
$this->addtickmark("MINOR", $i);
}
}
// set major tickmarks
if ( $this->majortick )
{
for ($i=$this->min; $i<=$this->max; $i+=$this->maj_tspan)
{
$this->addtickmark("MAJOR", $i);
}
}

// draw needle
$long = 0.95*$this->center;
$width = 0.06*$this->center;
$width2 = 0.2*$this->center;
$degrees = $this->startarc + floor($this->pos*$this->span/$this->max);
$triangle = array($this->center,
$this->center,
$this->center+$width*cos(deg2rad($degrees+90)),
$this->center+$width*sin(deg2rad($degrees+90)),
$this->center+$long*cos(deg2rad($degrees)),
$this->center+$long*sin(deg2rad($degrees)));
imagefilledpolygon($this->img, $triangle, 3, $this->black);

$triangle = array($this->center,
$this->center,
$this->center+$width*cos(deg2rad($degrees-90)),
$this->center+$width*sin(deg2rad($degrees-90)),
$this->center+$long*cos(deg2rad($degrees)),
$this->center+$long*sin(deg2rad($degrees)));
imagefilledpolygon($this->img, $triangle, 3, $this->silver);

$triangle = array($this->center,
$this->center,
$this->center+$width*cos(deg2rad($degrees-90)),
$this->center+$width*sin(deg2rad($degrees-90)),
$this->center+$width2*cos(deg2rad($degrees-180)),
$this->center+$width2*sin(deg2rad($degrees-180)));
imagefilledpolygon($this->img, $triangle, 3, $this->black);

$triangle = array($this->center,
$this->center,
$this->center+$width*cos(deg2rad($degrees+90)),
$this->center+$width*sin(deg2rad($degrees+90)),
$this->center+$width2*cos(deg2rad($degrees-180)),
$this->center+$width2*sin(deg2rad($degrees-180)));
imagefilledpolygon($this->img, $triangle, 3, $this->silver);

imagefilledarc($this->img,
$this->center,
$this->center,
0.1*$this->center,
0.1*$this->center,
0,
360,
$this->black,
IMG_ARC_PIE );

//Wait for plot to avoid drawing more than one legend or hand

imagestring($this->img,
$this->fontsize(),
$this->center+1-strlen($this->legend)*(3+$this->fontsize())/2,
0.58*$this->imagesize,
$this->legend,
$this->black);

// writing to screen
switch ($this->output)
{
case "gif":
header("Content-type: image/gif");
imagegif($this->img);
break;

case "jpg":
header("Content-type: image/jpg");
imagejpg($this->img);
break;

case "png":
header("Content-type: image/png");
imagepng($this->img);
break;
}
imagedestroy($this->img);
}

/**
* gauge::addtickmark()
*
* Adds the tickmarks in the scale.
*
* @param mixed $type
* @param mixed $value
*/
function addtickmark($type, $value)
{
// Draw black divisions
$degrees = $this->startarc + floor($value*$this->span/$this->max);
switch ($type)
{
case "MAJOR":
$y = 0.85*$this->center*sin(deg2rad($degrees));
$x = 0.85*$this->center*cos(deg2rad($degrees));
$y2 = 0.65*$this->center*sin(deg2rad($degrees));
$x2 = 0.65*$this->center*cos(deg2rad($degrees));
break;

case "MINOR":
$y = 0.80*$this->center*sin(deg2rad($degrees));
$x = 0.80*$this->center*cos(deg2rad($degrees));
$y2 = 0.70*$this->center*sin(deg2rad($degrees));
$x2 = 0.70*$this->center*cos(deg2rad($degrees));
break;
}
imageline ($this->img, $this->center+$x2, $this->center+$y2, $this->center+$x, $this->center+$y, $this->black);
}

/**
* gauge::fontsize()
*
* Determine the fontsize which is depending of the image size.
*
*/
function fontsize()
{
switch(true)
{
case $this->imagesize <= 150:
$fontsize = 1;
break;

case $this->imagesize <= 200:
$fontsize = 2;
break;

case $this->imagesize <= 300:
$fontsize = 3;
break;

case $this->imagesize <= 400:
$fontsize = 4;
break;

default:
$fontsize = 5;
break;
}

return $fontsize;
}

}

?>

[feagle]

<?php
include ('gauge.class.php');

$value = $_GET['value'];
$size = $_GET['size'];
$text = $_GET['text'];
$green = $_GET['green'];
$yellow = $_GET['yellow'];
$min = $_GET['min'];
$max = $_GET['max'];
$span = $_GET['span'];

$gauge = new gauge();
$gauge->setPos($value);
$gauge->setImagesize($size);
$gauge->setLegend($text);
$gauge->setOutput(png);
$gauge->setGreen($green);
$gauge->setYellow($yellow);
$gauge->setMax($max);
$gauge->setMin($min);
$gauge->setSpan($span);
$gauge->plot();

?>

[feagle]

<?php
$size = 175;
$risks = 'gauge.php?'.http_build_query(array('value'=>5,
'text'=>'prova',
'size'=>$size,
'green'=>33,
'yellow'=>67,
'min'=>0,
'max'=>100,
'span'=>260));

$issues = 'gauge.php?'.http_build_query(array('value'=>46,
'text'=>'ISSUES',
'size'=>$size,
'green'=>33,
'yellow'=>67,
'min'=>0,
'max'=>100,
'span'=>180));

$escalations = 'gauge.php?'.http_build_query(array('value'=>8,
'text'=>'ESCALATIONS',
'size'=>$size,
'green'=>33,
'yellow'=>67,
'min'=>0,
'max'=>100,
'span'=>260));

$actions = 'gauge.php?'.http_build_query(array('value'=>41,
'text'=>'ACTIONS',
'size'=>$size,
'green'=>50,
'yellow'=>80,
'min'=>0,
'max'=>100,
'span'=>260));

$budget = 'gauge.php?'.http_build_query(array('value'=>23,
'text'=>'BUDGET',
'size'=>$size,
'green'=>80,
'yellow'=>90,
'min'=>0,
'max'=>100,
'span'=>260));

$hours = 'gauge.php?'.http_build_query(array('value'=>31,
'text'=>'BUDGET HOURS',
'size'=>$size,
'green'=>80,
'yellow'=>90,
'min'=>0,
'max'=>100,
'span'=>260));

$sr_ready = 'gauge.php?'.http_build_query(array('value'=>4,
'text'=>'SR READINESS',
'size'=>$size,
'green'=>10,
'yellow'=>50,
'min'=>0,
'max'=>100,
'span'=>260));

$pr_ready = 'gauge.php?'.http_build_query(array('value'=>41,
'text'=>'PR READINESS',
'size'=>$size,
'green'=>10,
'yellow'=>50,
'min'=>0,
'max'=>100,
'span'=>260));

echo "
<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">
<html xmlns=\"http://www.w3.org/1999/xhtml\">
<head>
<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\" />
<title>Gauge Testing</title>
</head>

<body>
<table border='0' cellspacing='0' cellpadding='2' align='center'>
<tr>
<td>[img]".$risks."[/img]</td>
<td>[img]".$issues."[/img]</td>
<td>[img]".$escalations."[/img]</td>
<td>[img]".$actions."[/img]</td>
<tr>
<tr>
<td>[img]".$budget."[/img]</td>
<td>[img]".$hours."[/img]</td>
<td>[img]".$sr_ready."[/img]</td>
<td>[img]".$pr_ready."[/img]</td>
<tr>
</table>

</body>
</html>";

?>